Lightweight bottom dump trailer beam



FIG. 1 is a perspective view of a lightweight bottom dump trailer beam;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof; and,

FIG. 4 is a front view thereof where the lightweight bottom dump trailerbeam is shown mounted on a lightweight bottom dump trailer shown inbroken lines.

The broken lines illustrate environment of the article and do not formpart of the claimed design.

CLAIM The ornamental design for a lightweight bottom dump trailer beam,as shown and described.